Home / 87,578.15-120,835.60-53,574.21

Finding the Fourth Proportional to 87,578.15, 120,835.60 and 53,574.21

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Solution

The fourth proportional to 87,578.15, 120,835.60 and 53,574.21 is: 73,918.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,578.15 : 120,835.60 = 53,574.21 : x
  2. Step 2: Convert to fraction form
    87,578.15/120,835.60 = 53,574.21/x
  3. Step 3: Cross multiply
    87,578.15x = 120,835.60 × 53,574.21
  4. Step 4: Simplify right side
    87,578.15x = 6,473,671,675.94
  5. Step 5: Solve for x
    x = 6,473,671,675.94/87,578.15
  6. Step 6: Final answer
    x = 73,918.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.